DIVISION: THERMAL AND MOISTURE PROTECTION SECTION: TERMAL INSULATION SECTION: AIR BARRIERS REPORT HOLDER:

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1 0 Most Widely Accepted and Trusted ICC ES Evaluation Report ICC ES 000 (800) (562) es.org ESR 3228 Reissued 01/2017 This report is subject to renewal 01/2019. DIVISION: THERMAL AND MOISTURE PROTECTION SECTION: TERMAL INSULATION SECTION: AIR BARRIERS REPORT HOLDER: THE DOW CHEMICAL COMPANY 200 LARKIN CENTER 1605 JOSEPH DRIVE MIDLAND, MICHIGAN EVALUATION SUBJECT: FROTH PAK POLYURETHANE FOAM INSULATION Look for the trusted marks of Conformity! 2014 Recipient of Prestigious Western States Seismic Policy Council (WSSPC) Award in Excellence A Subsidiary of ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as to any finding or other matter in this report, or as to any product covered by the report. Copyright 2017 ICC Evaluation Service, LLC. All rights reserved.

2 ICC-ES Evaluation Report (800) (562) ESR-3228 Reissued January 2017 Revised October 2017 This report is subject to renewal January A Subsidiary of the International Code Council DIVISION: THERMAL AND MOISTURE PROTECTION Section: Thermal Insulation Section: Air Barriers REPORT HOLDER: THE DOW CHEMICAL COMPANY 200 LARKIN CENTER 1605 JOSEPH DRIVE MIDLAND, MICHIGAN (866) EVALUATION SUBJECT: FROTH-PAK POLYURETHANE FOAM INSULATION 1.0 EVALUATION SCOPE 1.1 Compliance with the following codes: 2012 and 2009 International Building Code (IBC) 2012 and 2009 International Residential Code (IRC) 2012 and 2009 International Energy Conservation Code (IECC) Other Codes (see Section 8.0) Properties evaluated: Physical properties Surface-burning characteristics Air permeability Thermal resistance 1.2 Evaluation to the following green standard: 2008 ICC 700 National Green Building Standard (ICC ) Attributes verified: See Section USES FROTH-PAK polyurethane foam insulation is used as nonstructural thermal insulating material in Type V construction under the IBC and in dwellings under the IRC. The insulation is for use in wall cavities, floor/ceiling assemblies, attics and crawl spaces, sill plates, band joists and headers when installed in accordance with this report. The insulation is air-impermeable and may be used to seal the joints in site-fabricated metallic air ducts under the IRC when installed as described in Section 4.4; and may be used in any type of construction as an air barrier material when installed as described in Section 4.5. Use in attics and crawl spaces is described in Section DESCRIPTION 3.1 General: FROTH-PAK polyurethane foam insulation is a twocomponent, closed-cell, spray-applied, medium-density, polyurethane foam plastic having a nominal density of 1.75 pcf. The insulation is produced in the field by combining a polymeric isocyanate (component A) with a resin base (component B), at a 1:1 ratio by volume. The product is available in multiple size packages that include pressurized A and B cylinders, a dispensing gun/hose assembly and accessories. The insulation components have a shelf life of fifteen months when stored in unopened containers at temperatures between 60 F (15.5 C) and 120 F (49 C). The attributes of the insulation have been verified as conforming to the provisions of ICC Section (c) as an air impermeable insulation. Note that decisions on compliance for those areas rest with the user of this report. The user is advised of the project-specific provisions that may be contingent upon meeting specific conditions, and the verification of those conditions is outside the scope of this report. These codes or standards often provide supplemental information as guidance. 3.2 Surface-burning Characteristics: At a maximum thickness of 2 inches (51 mm) and a nominal density of 1.75 pcf, the insulation has a flamespread index of 25 or less and a smoke-developed index of 450 or less when tested in accordance with ASTM E Thermal Resistance, R-values: The insulation has thermal resistance (R-value) at a mean temperature of 75 F (24 C) as shown in Table Air Permeability: The insulation, at a minimum thickness of 1 / 2 inch (12.7 mm), is considered air-impermeable insulation in accordance with Section R806.5 of the IRC (Section R806.4 of the 2009 IRC), based on testing in accordance with ASTM E INSTALLATION 4.1 General: The insulation must be installed in accordance with the manufacturer s published installation instructions, the applicable code and this report. The manufacturer s published installation instructions must be available on the jobsite at all times during installation. ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as to any finding or other matter in this report, or as to any product covered by the report. Copyright 2017 ICC Evaluation Service, LLC. All rights reserved. Page 1 of 6

3 ESR-3228 Most Widely Accepted and Trusted Page 2 of Application: The insulation is spray-applied at a one-to-one ratio to a maximum 2-inch (51 mm) thickness, as specified in the manufacturer s published installation instructions. The maximum service temperature must be no greater than that specified in The Dow Chemical Company installation instructions. The insulation must not be sprayed onto a substrate that is wet, or covered with frost or ice, loose scales, rust, oil, or solvents. The insulation must not be used in electrical outlet or junction boxes, or on heaters, furnaces, fireplaces, chimneys, vents, recessed light fixtures or other applications where the foam may come in contact with heat-conducting surfaces. The insulation must be protected from the weather during and after application. Where used as an air-impermeable insulation, the insulation must be installed at a minimum thickness of 1 / 2 inch (12.7 mm). 4.3 Thermal Barrier: The insulation must be separated from the interior of the building by an approved thermal barrier of 1 / 2 -inch-thick (12.7 mm) gypsum wallboard or an equivalent 15-minute thermal barrier complying with IBC Section or IRC Section R316.4, as applicable, except where installation is as described in Sections 4.4, 4.5 and 4.6. Within an attic or crawl space, installation must be in accordance with Section Joint Sealant on Metallic Air Ducts: The insulation, installed at a maximum thickness of 2 inches (51 mm) and width of 6 inches (152 mm), may be used to seal the joints of non-factory-made (non-listed) air ducts, in accordance with Section M of the IRC. See Figure Applications as Air Barrier Material: FROTH-PAK may be used in any type of construction as an air barrier material for wall/floor and roof/wall intersections in the exterior building envelope when installed at a maximum thickness of 2 inches (51 mm) and width of 6 inches (152 mm) (the length is unlimited). See Figures 2 and 3. In wall/floor intersections, the foam plastic may be applied over a fire-resistant joint without affecting the fireresistance rating provided the foam plastic installation is limited to 2 inches by 2 inches (51 mm by 51 mm) and unlimited length. 4.6 Use on Sill Plates, Band Joists and Headers: The FROTH-PAK polyurethane foam insulation with a maximum thickness of 2 inches (51 mm) may be applied to sill plates, band joists and headers without a thermal barrier or ignition barrier in Type V construction in accordance with IBC Section and IRC Section R Attics and Crawl Spaces: When FROTH-PAK polyurethane foam insulation is installed within attics or crawl spaces, where entry is made only to service utilities, an ignition barrier must be installed on the interior of the attic or crawl space in accordance with IBC Section or IRC Sections R and R , as applicable. The ignition barrier must be consistent with the requirements for the applicable code, and must be installed in a manner so that the foam plastic insulation is not exposed. The attic or crawl space area must be separated from the interior, habitable space of the building by an approved 15-minute thermal barrier. The insulation may be installed in unvented attics as described in this section in accordance with IRC Section R806.5 (2009 IRC Section R806.4). 5.0 CONDITIONS OF USE The FROTH-PAK polyurethane foam insulation described in this report complies with, or is a suitable alternative to what is specified in, those codes listed in Section 1.0 of this report, subject to the following conditions: 5.1 The insulation must be installed in accordance with the manufacturer s published installation instructions, this evaluation report and the applicable code. The instructions within this report govern if there are any conflicts between the manufacturer s published installation instructions and this report. 5.2 The insulation must be separated from the interior of the building by an approved 15-minute thermal barrier as described in Section 4.3, except as described in Sections 4.4, 4.5, 4.6 and The insulation must be applied by installers certified by The Dow Chemical Company or by the Spray Polyurethane Foam Alliance (SPFA) for the installation of spray polyurethane foam insulation. 5.4 A vapor retarder must be installed when required by the applicable code. 5.5 The insulation must be protected from the weather during and after application. 5.6 Use of the insulation in areas where the probability of termite infestation is very heavy must be in accordance with 2012 IBC Section (2009 IBC Section ) or IRC Section R318.4, as applicable. 5.7 Jobsite certification and labeling of the insulation must comply with IRC Sections N and N and IECC Sections, and , as applicable. 5.8 FROTH-PAK polyurethane foam insulation must not be used as a component of a fire-resistant joint system. The integrity of all fire-resistant joints must be inspected and verified. The insulation may be applied over the top of a fire-resistant joint system, as described in Section The insulation components (parts A and B) are produced by The Dow Chemical Company, under a quality control program with inspections by ICC-ES. 6.0 EVIDENCE SUBMITTED 6.1 Data in accordance with the ICC-ES Acceptance Criteria for Spray-applied Foam Plastic Insulation (AC377), dated April Reports on air leakage tests in accordance with ASTM E Reports of modified room corner tests in accordance with NFPA Engineering analysis addressing use as an air barrier material and duct joint sealant. 7.0 IDENTIFICATION Components of FROTH-PAK polyurethane foam insulation are identified with the manufacturer s name (The Dow Chemical Company) and address; the product name (A Component - Isocyanate; B Component - Polyol); lot number; use and application instructions; the flame-spread and smoke-development indices; and the evaluation report number (ESR-3228). 8.0 OTHER CODES In addition to the codes referenced in Section 1.0, the products described in this report were evaluated for compliance with the requirements of the following codes:

4 ESR-3228 Most Widely Accepted and Trusted Page 3 of International Building Code (2006 IBC) 2006 International Residential Code (2006 IRC) 2006 International Energy Conservation Code (2006 IECC) 2003 International Building Code (2003 IBC) 2003 International Residential Code (2003 IRC) 2003 International Energy Conservation Code (2003 IECC) The products comply with the above-mentioned codes as described in Sections 2.0 through 7.0 of this report, except as noted below: Application with a Prescriptive Thermal Barrier: See Section 4.3, except the approved thermal barrier must be installed in accordance with Section R314.4 of the 2006 IRC or Section R of the 2003 IRC. Application with a Prescriptive Ignition Barrier: See Section 4.7, except attics and crawl spaces must be vented in accordance with Section of the 2006 and 2003 IBC or Section R806 of the 2006 and 2003 IRC; and crawl space ventilation must be in accordance with Section of the 2006 and 2003 IBC or Section R408 of the 2006 and 2003 IRC, as applicable. Protection Against Termites: See Section 5.6, except use of the insulation in areas where the probability of termite infestation is very heavy must be in accordance with Section R320.5 of the 2006 IRC or Section R320.4 of the 2003 IRC. Jobsite Certification and Labeling: See Section 5.7, except jobsite certification and labeling must comply with Sections and , as applicable in the 2006 IECC. TABLE 1 THERMAL RESISTANCE (R-VALUES) THICKNESS (inches) R-VALUE 1 ( F.ft 2.h/Btu) For SI: 1 inch = 25.5 mm; 1 F ft 2.h/Btu = K.m 2 /W. 1 Calculated R-values are calculated based on tested K-values at 1- and 2-inch thicknesses. FIGURE 1 EXAMPLE OF DUCT JOINT SEALING APPLICATION OF FOAM FIGURE 2 EXAMPLE OF ROOF/WALL JUNCTURE APPLICATION OF FOAM FIGURE 3 EXAMPLE OF WALL/FLOOR JUNCTURE APPLICATION OF FOAM

5 ICC-ES Evaluation Report (800) (562) ESR-3228 Seal & Insulate with ENERGY STAR Supplement Reissued January 2017 Revised October 2017 This report is subject to renewal January A Subsidiary of the International Code Council DIVISION: THERMAL AND MOISTURE PROTECTION Section: Thermal Insulation REPORT HOLDER: THE DOW CHEMICAL COMPANY 200 LARKIN CENTER 1605 JOSEPH DRIVE MIDLAND, MICHIGAN (866) EVALUATION SUBJECT: FROTH-PAK POLYURETHANE FOAM INSULATION 1.0 EVALUATION SCOPE Conformance to the following requirements: Seal and Insulate with ENERGY STAR Program, Definitions and Testing Requirements for Residential Insulation, Version 1.0 Properties evaluated: Thermal resistance Surface-burning characteristics 2.0 PURPOSE OF THIS SUPPLEMENT This supplement is issued to certify that the insulation product described in Sections 2.0 through 7.0 of the master report ESR-3228 has been reviewed for compliance with the applicable codes noted in Section 1.0 of the master report and with the requirements set forth in the Seal and Insulate with ENERGY STAR Program Definitions and Testing Requirements for Residential Insulation, Version 1.0. The insulation product covered by this supplement is defined as "Spray or Pour Foam Insulation." The requirements for testing laboratory qualifications and product sampling, as well as the specific material and test standards and editions used in this evaluation, are as set forth in the applicable documentation noted in Section 6.0 of the master evaluation report. 3.0 DEFINITIONS The following definitions are from the Definitions and Testing Requirements for Residential Insulation, Version 1.0, and are applicable to the subject of this report. 3.1 General Definitions: Insulation: Any material mainly used to slow down heat flow. It may be mineral or organic, fibrous, cellular, or reflective (aluminum foil). It may be in rigid, semi-rigid, flexible, or loose-fill form. Residential Buildings: Single family homes (attached or unattached), multifamily buildings with 4 units or fewer, or multifamily buildings (condominiums, apartments) with 3 stories or less in height above grade. ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as to any finding or other matter in this report, or as to any product covered by the report. Copyright 2017 ICC Evaluation Service, LLC. All rights reserved. Page 4 of 6

6 ESR-3228 Supplement Most Widely Accepted and Trusted Page 5 of Insulation Product Definitions: Spray or Pour Foam Insulation: A thermal insulating material that is sprayed or poured (as a gel or foamy liquid) into place, and expands or sets into a cellular foam and cures at the point of installation through a chemical reaction. Foamed materials include, but are not limited to polyurethane, polyisocyanurate, phenolic, and cementitious insulation. 3.3 Insulation Performance Definitions: R-value: The inverse of the time rate of heat flow through a body from one of its bounding surfaces to the other surface for a unit temperature difference between the two surfaces, under steady state conditions, per unit area. For the purposes of the Seal and Insulate with ENERGY STAR program, Imperial units will only be accepted [(h ft 2 F)/Btu]. Smoke-Development Index: The characteristic of a material to emit smoke when exposed to flame or fire compared to red oak and inorganic cement. Flame-Spread Index: The characteristic of a material to resist the spreading of flames when exposed to flame or fire compared to red oak and inorganic cement. 3.4 Thermal Resistance: The insulation has the thermal resistance R-values as noted in Table 1 of ESR-3228, based upon testing. The use of additional insulation may be needed to meet the minimum wall R-values set forth in the IECC. The use of additional insulation materials is outside the scope of this report. 3.5 Installation General: The installation of the insulation must be in accordance with the requirements set forth in Sections 4.2, 4.3, 4.7 and 5.0 (as applicable) of ESR The insulation is installed on-site by spray polyurethane foam applicators meeting the qualification requirements set forth in Section 5.3 of ESR The following personal protective equipment and ventilation requirements are reprinted from The Dow Chemical Company published installation instructions and are reprinted in this report for informational purposes: "Wear Personal Protective Equipment (PPE) 1. Always wear chemically resistant gloves (e.g., nitrile). 2. Always wear long sleeves and pants for full body covering. 3. Always wear goggles or safety glasses. 4. Wear a respirator. If there is any doubt about the amount of exposure to MDI possible in any given situation, wear a respirator with an organic vapor sorbent and P100 particulate filter. This is especially important when spraying in confined areas or areas with low ventilation like attics and crawl spaces, when spraying overhead, or when using a wide or fan spray nozzle. Keep Others Out of Work Area 1. Section off the work area to keep non-essential workers and others out of the spray area. 2. Use plastic sheeting to protect from overspray." Occupancy time after installation: The re-entry or re-occupancy time shall be in accordance with the manufacturer's installation instructions, which state: "It is important to ensure that the spray area is well ventilated during application. Ventilation in Air Changes per Hour (ACH): During application a minimum of 10 ACH is required. Cross ventilation is recommended with negative pressure in the spray area and exhaust to a secured empty area. A commercial ventilation unit is recommended for increased ventilation rates. Continue to ventilate area for at least 1 hour after the job is completed at no less than 10 ACH. Re-entry into an application site in the occurring less than 1 hour post spray with proper ventilation requires the use of an approved air purifying respirator equipped with an organic vapor sorbent and a particle filter." Figures: The figures shown represent general installations of the insulation in two types of full wall application. These figures are for illustration purposes and are not to be construed or used as construction documents. This supplement expires concurrently with the master report, reissued February 2017 and revised October 2017.

7 ESR-3228 Supplement Most Widely Accepted and Trusted Page 6 of 6 Flash & Batt Vertical Exterior Wall Application: FROTH-PAK is spray-applied to the interior face of the exterior sheathing in each stud cavity at a thickness between 1 / 2 to 1 inch (12.7 to 25.4 mm). After FROTH-PAK has cured a layer of glass fiber batt insulation is installed in each cavity over the FROTH- PAK. A minimum 15-minute thermal barrier, in accordance with the Section 4.3 of ESR-3228 must be provided. Vertical Exterior Wall Application: FROTH-PAK is spray-applied to the interior face of the exterior sheathing in each stud cavity at a maximum thickness of 2 inches (51 mm). A minimum 15-minute thermal barrier, in accordance with the Section 4.3 of ESR-3228 must be provided.